http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2651776-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_38a0ecf90a4ec02af686213ff43d2a9e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C241-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C243-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C241-02 |
| filingDate | 1989-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9b0ee381f28066c51563973af300e045 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ff3f1b0c8511f3e84450a1df486bc786 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a2b6a716fa1011f3321ead3939e37a7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_57473f1a24468a1cea52d695ba33e2ca |
| publicationDate | 1991-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | FR-2651776-A1 |
| titleOfInvention | PROCESS FOR THE SYNTHESIS OF MONOMETHYLHYDRAZINE IN AQUEOUS SOLUTION. |
| abstract | The present invention relates to a process for the synthesis of monomethylhydrazine in aqueous solution by reacting, for a period D1, in aqueous medium and under an oxygen-free atmosphere, of monochloramine with a molar excess of monomethylamine in the presence of a strong base. The reaction medium is then heated, under an oxygen-free atmosphere, between 30 and 100 degrees C, for a period of time D2 such that D2 / D1 is greater than 10, while maintaining the pH greater than 13.5, so as in particular to eliminate methyldiazene, a particular explosive and dangerous by-product. The reaction medium is then purified and concentrated, so as to obtain a concentrated aqueous solution of monomethylhydrazine. The elimination of methyldiazene considerably improves the operating conditions and the safety of implementation of the process. Monomethylhydrazine is used in particular as a synthetic intermediate and as an oxidizer for rocket engines. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7879999-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7390929-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2005058801-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-100430371-C http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2864078-A1 |
| priorityDate | 1989-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.